278 



INDEX 



Convolvulus arvensis, 254; sepium, 254 



Convulsives, 9, n 



Cook, O. F., and wild wheat, 105 



Copaiba, 185 



Copaiba oblongifolia, 185; officinalis, 185 



Copaifera, 184 



Copaiva balsam, 184 



Copal, 184 



Corchorus capsularis, 228; olitorius, 228 



Coriamyrtin, 89 



Corn, 155; cultivation of, 161; flakes, 160; 

 of hybrid origin, 155; oil, 160; 



Corn cockle as a poisonous plant, 57; 

 rotation, 161; sowing, 160 



Corn poppy, 66 



Corolla, the second usually highly colored 

 whorl of the flower. 



Coronilla scorpioides, 266 



Corsa, Mr. William P., hair ball from, 4 



Corymb, a flat-topped, indefinite flower 

 cluster. 



Coryza, a catarrhal affection of the nasal 

 passages and nearby sinuses. 



Cotton, 236 



Cotyledon, a leaf of the embryo; a seed- 

 leaf. 



Couch grass, 128 



Coville, Dr. F. V., work of, 4 



Cowpea, 184; description of, 200; rota- 

 tions, 201; utility of, 201; varieties 

 of, 20 1 



Cox, work of, on tobaccos, 14 



Crab grass, 129, 252 



Cranberry, 234 



Crawford, Dr. Albert C., work of, 78 



Crimson clover, 194; hair balls of, 5; 

 treatment of, 194; uses of, 195 



Crito, mentioned, 91 



Crop rotations, 223 



Crook's estimate of loss by sewage, 219 



Crotalaria juncea, 184; sagittalis, as a 

 poisonous plant, 79 



Crotin, 19 



Crowberry, 55 



Crown weeds, 254 



Cucumis melo, 232 



Cucurbita maxima, 232; pepo, 232 

 Cultivation, influence of in the formation of 



poisons, 14 



Cultivation of corn, 160, 161 

 Culm, 123 

 Cumarin, 141 



Cunningham, Dr. A. E., mentioned, 109 

 Curled dock, 254 

 Currant, 233; black, 233 

 Cuscuta arvensis, 267; racemosa, 268 

 Custard-apple, 235 

 Cyamopsis tetragonoloba, 212 

 Cyanogenesis, the origin of prussic acid 



from a glucoside. 

 Cyanosis, a bluish discoloration of the 



skin through the non-oxidation of 



the blood. 

 Cyclamin, 20 

 Cydonia oblonga, 232 

 Cynara cardunculus, 246; scolymus, 230 

 Cynodon dactylon, 144 

 Cyperus esculentus, 226 

 Cypripedium hirsutum, as a poisonous 



plant, 52 

 Cytisin, 71 

 Cytisus canariensis, 185; scoparius as a 



poisonous plant, 70 



Dactylis glomerata, 137 



Daisy fleabane, 243 



Daisy, ox-eye, 251 



Dalbergia latifolia, 184 



Dalmatian insect powder, 231 



Dandelion, 254 



Danthonia semi-annularis, 267 



Darnel, 46, 142 



Dasheen, 226, 229 



Dasylirion texanum, 213; Wheeleri, 213 



Date, 233 



Datura Stramonium, 100; Tatula, 100 



Daucus carota, 249, 254 



Dawson, Dr. Charles F., report of hair 



balls, 6 



Dead nettle, 252 

 Death camas, 47 

 Death cup, 35 



